Basics and Folder Structure

The fundamentals and how to organize your project.

Every Flutter project starts with a standard structure. The
lib folder is where all your Dart code lives. A common and scalable way to organize it is using a feature-first approach.\n\nIn this pattern, code is grouped by feature (e.g.,
auth,
profile,
products). Each feature directory contains everything related to that feature: models, UI (widgets/pages), and state management logic.

Code Example

lib/
├── main.dart
|
├── features/
│   ├── auth/
│   │   ├── data/
│   │   │   ├── models/
│   │   │   └── providers/
│   │   ├── presentation/
│   │   │   ├── pages/
│   │   │   └── widgets/
│   │   └── application/
│   │       └── auth_service.dart
│   │
│   └── product/
│       ├── data/
│       ├── presentation/
│       └── application/
|
└── core/
    ├── theme/
    ├── utils/
    └── widgets/ (re-usable shared widgets)